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    <title>css的基本用法</title>
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    <link rel="stylesheet" href="../../jsfile/layer.css"/>
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<p id="text_show">
    需求1.分别定义两个div,span标签,分别修改每个div标签的样式为:边框1个像素,实线,红色
</p>
<div style=" border: 1px solid red">div标签1</div>
<div style="border: 1px solid red">div标签2</div>
<span style="border: 1px solid red">span标签1</span>
<span style="border: 1px solid red">span标签2</span>
<div class="look_source_code" onclick="getPageContent()">查看源码</div>
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